When a nonprofit brings in more money than it spends, nothing automatically goes wrong. Federal tax rules let a 501(c)(3) run a surplus, and doing so is a sign of steady management rather than a violation. What happens when a nonprofit makes too much money depends entirely on where that money goes next: surplus funds have to stay inside the organization and serve the exempt purpose it was created for, and several specific rules govern taxes, insider payments, classification, and reporting once the numbers grow.1Internal Revenue Service. Inurement/Private Benefit – Charitable Organizations
A Surplus Is Legal, and Usually Healthy
“Nonprofit” does not mean the organization must break even. It means no individual owner or shareholder can pocket the leftover money. A for-profit distributes earnings to shareholders. A nonprofit reinvests them. That’s the distinction.
Consistent surpluses are what responsible management looks like. An organization that spends every dollar the year it arrives is one bad quarter from shutting down. A surplus lets a nonprofit absorb a drop in donations, bridge a gap between grant cycles, or fund something that won’t pay off for years. The constraint is straightforward: every dollar must ultimately serve the purpose the organization described in its founding documents and its application for tax-exempt status.
Where the Money Can Go
Most organizations channel surplus into a few categories. The most direct is expanding programs: a food bank hiring more drivers, a tutoring program opening a second location, an animal shelter extending clinic hours.
A second use is an operating reserve, a dedicated cushion for lean periods or emergencies. A widely used benchmark is three to six months of operating expenses, calibrated to the organization’s revenue patterns. At a minimum, a reserve should cover at least one full payroll cycle. Reserves exceeding about two years of budget start raising questions about whether the organization is actively pursuing its mission or simply stockpiling cash.
Larger nonprofits also save surplus for capital projects, such as a new facility, a major renovation, or specialized equipment. Some go further and establish endowments, investing a pool of money so the returns fund operations indefinitely.
Unrelated Business Income Tax
Not all revenue a nonprofit earns is tax-free. When an organization regularly runs a business that has nothing to do with its exempt purpose, the IRS taxes the profit from that activity. This is called unrelated business income tax, or UBIT. Three conditions must all be true: the revenue comes from a trade or business, the business is regularly carried on rather than an occasional fundraiser, and the activity is not substantially related to the organization’s mission.2Internal Revenue Service. Unrelated Business Income Tax The fact that the organization needs the money does not make the activity related.
A university that operates a commercial parking garage open to the general public is a textbook example. Education is the mission; running a parking business for commuters is not. Net income from the garage is taxable. Organizations with $1,000 or more in gross unrelated business income must file Form 990-T and pay tax at the standard 21% corporate rate.3Internal Revenue Service. Instructions for Form 990-T (2025) A $1,000 specific deduction applies against unrelated business taxable income, so organizations only slightly above the threshold may owe little or nothing.4Office of the Law Revision Counsel. 26 U.S. Code 512 – Unrelated Business Taxable Income
When Commercial Activity Threatens Exempt Status
Paying UBIT on a side business is routine and does not, by itself, put a nonprofit’s exemption at risk. The danger arises when commercial activity starts to dominate. Under IRS regulations, a nonprofit will only be treated as operating exclusively for exempt purposes if it engages primarily in activities that accomplish those purposes. If more than an insubstantial part of its activities serves a nonexempt purpose, it can lose its exemption entirely.5Internal Revenue Service. When Are Commercial Type Activities a Substantial Nonexempt Purpose for an IRC 501(c)(3) Organization
There is no bright-line percentage. The IRS looks at the whole picture: whether the organization competes directly with for-profit businesses, how it prices services, whether it relies on commercial advertising, and what share of its funding comes from donations versus commercial sales.6Internal Revenue Service. How to Lose Your 501(c)(3) Tax-Exempt Status (Without Really Trying)
Losing Public Charity Status
Most 501(c)(3) organizations are classified as public charities, which brings more favorable treatment and fewer restrictions than the alternative: private foundation. Keeping that designation depends on where the money comes from. An organization qualifies as publicly supported if it normally receives a substantial part of its funding from government sources or public contributions, or if it gets more than one-third of its support from gifts, grants, and program-related revenue while receiving no more than one-third from investment income. The IRS measures this over a rolling five-year period.7Internal Revenue Service. EO Operational Requirements – Requirements for Publicly Supported Charities
A nonprofit that accumulates a large investment portfolio can inadvertently tip this balance. If investment income grows large relative to public support, the organization risks reclassification as a private foundation. That shift brings real consequences: a 1.39% excise tax on net investment income, restrictions on dealings between the foundation and its major contributors, mandatory annual distributions for charitable purposes, and limits on holdings in private businesses.8Internal Revenue Service. Tax on Net Investment Income9Internal Revenue Service. Private Foundations
Private Inurement and Excess Benefits
The fastest way for a nonprofit to land in serious trouble is funneling money to insiders. Federal law flatly prohibits any portion of a 501(c)(3) organization’s net earnings from benefiting any private shareholder or individual with a personal interest in the organization.1Internal Revenue Service. Inurement/Private Benefit – Charitable Organizations Board members, officers, key employees, and their families cannot receive compensation or other benefits that exceed what’s reasonable for the services they provide.
The definition of “insider” is broader than most people expect. The regulations include the spouse, siblings, children, grandchildren, great-grandchildren, ancestors, and the spouses of all those relatives as disqualified persons if a family member holds a position of substantial influence over the organization.10eCFR. 26 CFR 53.4958-3 – Definition of Disqualified Person A board member’s brother-in-law getting an above-market contract to renovate the nonprofit’s office triggers the same rules as if the board member took the money directly.
Boards that pay executives well can protect themselves through a three-step process that creates a legal presumption the compensation is reasonable: an independent committee with no conflicts of interest must approve the pay in advance, rely on comparability data from similar organizations, and document the basis for its decision at the time it’s made.11eCFR. 26 CFR 53.4958-6 – Rebuttable Presumption That a Transaction Is Not an Excess Benefit Transaction Skip any step and the presumption disappears.
Intermediate Sanctions
When an insider receives more than fair value, the IRS often imposes intermediate sanctions rather than revoking the exemption. Excise taxes hit the individuals rather than the organization. The disqualified person who received the excess benefit owes a tax equal to 25% of the amount by which the benefit exceeded fair value. Any organization manager who knowingly approved the transaction also owes a tax of 10% of the excess benefit, capped at $20,000 per transaction.12Office of the Law Revision Counsel. 26 USC 4958 – Taxes on Excess Benefit Transactions
If the disqualified person does not fix the problem within the taxable period, the stakes escalate: an additional tax of 200% of the excess benefit kicks in. To avoid that second tax, the person must repay the organization in cash or cash equivalents. A promissory note does not count. The repayment amount includes the excess benefit plus interest at no less than the applicable federal rate, compounded annually, from the date of the transaction to the date of correction.13eCFR. 26 CFR 53.4958-7 – Correction
Limits on Lobbying and Political Spending
A nonprofit sitting on surplus might be tempted to put some of it toward influencing legislation or elections. The rules here are strict, and for political campaigns they are absolute.
A 501(c)(3) organization is completely prohibited from participating in any political campaign for or against a candidate for public office. This includes financial contributions, endorsements, and public statements of support or opposition. Violating this ban can result in revocation of tax-exempt status and excise taxes.14Internal Revenue Service. Restriction of Political Campaign Intervention by Section 501(c)(3) Tax-Exempt Organizations
Lobbying gets slightly more room. Nonprofits other than churches and private foundations can elect the expenditure test under Section 501(h), which sets concrete dollar limits based on total exempt-purpose spending. An organization spending $500,000 or less on exempt activities can devote up to 20% of that amount to lobbying, with the allowable percentage stepping down as spending grows. The total lobbying cap tops out at $1,000,000 regardless of size.15Internal Revenue Service. Measuring Lobbying Activity – Expenditure Test Without the election, the standard is vaguer: lobbying cannot be more than an “insubstantial part” of overall activities, which gives the IRS broad discretion.
Reporting Obligations as Revenue Grows
As revenue increases, so do reporting obligations. The specific form depends on gross receipts and total assets:
- Form 990-N (e-Postcard) for organizations with gross receipts normally at or below $50,000.
- Form 990-EZ for organizations with gross receipts under $200,000 and total assets under $500,000.
- Form 990 for organizations with gross receipts of $200,000 or more, or total assets of $500,000 or more.
The full Form 990 is a detailed public document that discloses executive compensation, program expenses, and governance practices. Any donor, journalist, or regulator can review it.16Internal Revenue Service. Form 990 Series – Which Forms Do Exempt Organizations File Crossing these thresholds also often triggers state-level audit and reporting requirements, typically in the range of $100,000 to $1,000,000 depending on the state.
Failing to file is not a minor oversight. An organization that does not submit its required Form 990 series return for three consecutive years automatically loses its tax-exempt status. Reinstatement requires a new application, and there is no grace period.17Internal Revenue Service. Automatic Revocation – How to Have Your Tax-Exempt Status Reinstated
What Revocation Actually Costs
The most severe consequence a nonprofit can face is losing its 501(c)(3) status. Revocation can follow private inurement, excessive unrelated business activity, political campaign involvement, or repeated filing failures. Once revoked, the organization owes federal income tax on its earnings like any other entity, and donations to it are no longer tax-deductible. For most nonprofits, that combination is fatal. Donors stop giving, grants dry up, and the organization cannot sustain itself.
The IRS treats revocation as a last resort for inurement and excess benefit issues, preferring intermediate sanctions when the problem involves individual transactions rather than a pattern of abuse. For political campaign activity, even a single violation can be enough. For filing failures, revocation is automatic after three years with no discretion. More revenue means more room to do the work, and more ways to stumble into a violation that jeopardizes everything.